Process Tanks, Containers, & Piping Flashcards
What are the 3 ways tanks/containers can be installed
Above ground
Elevated
Below ground
Why may a tank be installed off level?
Manipulate sediment
Aid in draining
What is the most common way to protect a tank from leaks
More layers
What is the most common material used for a drinking water tank?
Stainless steel
What are the two tests that can be done to check for leaks in a tank?
Pressure test
Vacuum test
What is the benefit of stains on tanks
Shows where leaks are
Keeping good records or what will help find hidden leaks?
Product in
VS
Product out
What is hydrostat
Pressure test
What is the hydrostat pressure test typically set to?
1.5x normal operating pressure
How would you size a grounding strap for a tank?
Dependant on size of equipment
How close can a tank be installed to a heat source?
MIN 10ft (3M) away from any heat
What is the most prevalent type of corrosion in metal piping?
Electrochemical
What is cloud point?
Temperature at which one component of a mixture of liquid begins to solidify
What is the term to describe the Temperature at which one component of a mixture of liquid begins to solidify
Cloud point
Describe flashpoint
The lowest temperature which a compound gives off sufficient vapour to ignite in the air
What is the term for the lowest temperature which a compound gives off sufficient vapour to ignite in the air
Flashpoint
Describe energy content
Chemical energy released by combustion
What is the term to describe the chemical energy released by combustion
Energy content
The lowest combustion temperature of a solid or fluid at which the material can ignite without any ignition source is referred to as what?
Ignition point
A material quality which describes how readily it will vaporize is referred to as what?
Volatility
A high volatility means what?
More likely to be a vapour
What are the two main types of piping?
Alloy piping
Plastic/lines piping
What are the two most common types of alloy piping?
Ferrus and non ferrus
What are the 3 things that will most influence what piping you’ll use?
Chemical
Physical
Mechanical
What is most often the force that makes or breaks chemical bonds?
Heat
Corrosion and oxidation are examples of what?
Chemical changes
What does brittleness mean?
Metal will easily fracture under low stress
What does compression strength mean?
Resists being crushed
What does ductility mean?
Ability to twist, bend, and stretch
What does elasticity mean?
Ability to return to shape
What does hardness mean?
Ability to resist indentation
What does shear strength mean?
Ability to withstand 2 forces acting in opposite directions
What does tensile strength mean?
Ability to resist push or pull of the material apart
What does torsional strength refer to?
Ability to withstand twisting?
What are the two treatments of stainless steel
Pickling
Passivating
What is pickling?
Chemical reaction which removes thin layer
What is passivating??
Oxide layer forms to make corrosive resistance
Why should you slowly open valves?
To not hammer components
How are valves typically attached?
Screwed on or flanged
What is critical to check when installing a valve?
Ensure flow is oriented the correct way
